Ford Contour:

1999 Fuel pump connection 5 wire

You are not logged in.

#1 3/21/2011 6:02 PM

gregtalbott
New member
Registered: 3/21/2011
Posts: 3

1999 Fuel pump connection 5 wire

2.5L 24Valve DOHC engine. Need fuel pump wiring connection information.
I have the white/red fuel level okay; 2 black grounds; violet power has constant voltage with ignition on = does not shut off after 1-2 seconds.
There is a heavier gauge all red wire = no voltage.
Is the heavier gauge red wire the fuel pump power supply?
Does anyone have a schematic for this connection? All the wiring diagrams I have found only show 4 wires (2 black, white/red and violet/orange.
Help greatly appreciated..............

Greg Talbott

Ford Contour Recalls, TSBs and Service Information >> ALLDATA

Offline

 
Sponsored Links
ALLDATAdiy.com

The Leading Source of Professional Diagnostic and Repair Information.

#2 3/22/2011 12:38 AM

way2old
Senior Member
Registered: 9/17/2009
Posts: 30

Re: 1999 Fuel pump connection 5 wire

Here is the wiring I have for your vehicle.

http://www.realworldautomotive.com/forums/uploads/thumbs/118_contour_pump.gif


Being way2old is why I need help from younger minds.
People are like slinkys, not much use but I still smile when I see one stumble down the stairs.
Ford Contour Recalls, TSBs and Service Information >> ALLDATA

Offline

 

#3 3/22/2011 2:21 AM

TechHelp2
Administrator
Registered: 11/24/2009
Posts: 1293

Re: 1999 Fuel pump connection 5 wire

Black is ground and is the number 1 terminal on the plug.

The number 2 terminal appears to be empty.

Violet/Orange is for the inertia cutoff switch. It is number 3 terminal on the plug. It is also from the fuel pump relay.

Black/Blue is the number 4 terminal on the plug.

White/Red is for the fuel gauge. It is number 5 terminal on the plug.

These are the wires that appear on the plug for the fuel module.

Let us know if this works for you. The schematic only shows four wires.
.


realworldautomotive.com
car and truck information like nowhere else
Ford Contour Recalls, TSBs and Service Information >> ALLDATA

Offline

 

#4 3/25/2011 9:06 PM

gregtalbott
New member
Registered: 3/21/2011
Posts: 3

Re: 1999 Fuel pump connection 5 wire

Thanks guys for the information.
I went ahead and disassembled the entire pump unit and the connections noted by TechHelp2 is correct.
The "empty" terminal on the pigtail has an internal wire that is another ground. Need to check a few things but I think the heavier red wire in the "empty" terminal COULD be an earth ground (as opposed to circuit ground).
The internal pump itself uses violet/orange for power; other is negative.
I believe the problem is the wiring in the fuel pump housing is no good as the pump motor works okay connected directly across the battery.
No sense in trying to replace internal pump but replace entire pump/housing assembly.
Thought I could save $280 on part cost but isn't going to happen.
Thanks again,
Greg

Ford Contour Recalls, TSBs and Service Information >> ALLDATA

Offline

 

#5 3/26/2011 10:20 PM

gregtalbott
New member
Registered: 3/21/2011
Posts: 3

Re: 1999 Fuel pump connection 5 wire

Found the problem. Inside the fuel pump cover the inner wiring actually has a connector on the outer pin connection. You wouldn't really notice it unless you stared at it good for a while. I managed to get this connector unhooked and there was the trouble.
The violet positive feed terminal connects to a pink connector down to the pump itself. Apparently the blended ethanol fuels used now corroded this connection. I cleaned it up and snapped it together and reinstalled the entire unit and all is okay.
The pump motor was okay so no replacement needed.
Good thing as the factory replacement entire unit (Carter part# P74954M) costs about $380. Not sure what a repair shop would attempt to replace but the Ford dealership would cost $200 for diagnosis and another $750 to replace. Figure in some tax and we're talking about a grand. My cost other than frustration equals zero.
Thanks for confirming my wiring diagram question; it set me looking in the correct location.

Greg Talbott

Ford Contour Recalls, TSBs and Service Information >> ALLDATA

Offline

 
E-mail Page
Print Page
Save or Share Information
ALLDATAdiy.com is the leading source of factory diagnostic & repair information specific to your car.

Powered by PunBB
Copyright © 2007-2016  RealWorldAutomotive.com

Save or Share Automotive Information
Custom Search